Look first for an acoustic guitar you like, then think about electronics. You will be much happier in the long run.
Also, I would highly advise you to give the Taylor ES system second, third, and even tenth thoughts. It is extremly unreliable, and though they are very good about warranty coverage (I have to love a company who pays me my full shop rate for repairs, and gives me replacement parts by the box load), that doesn't help much when you are in the middle of an important gig and your guitar stops making sound, or worse, starts humming like a Harley without a muffler. The repairs are usually pretty easy, as the system is very modular, but they do need to be done by a approved technician, and they usually take a few days. I know several guys who are seriously thinking of replacing the ES systems from their guitars just for the repair issues, and getting a Fishman system instead.
Just something to keep in mind.
Add to that the fact that no one I know with a good ear for acoustic guitar even kind of likes the ES system, and it is a real loser from my point of view. I do have to grant it this, however; It mixes with a band really well. It just sits in the mix, and has it's own space, basically without EQ. If that is what you need, and you don't mind the repair issues, then go with it.
Oh, and read the user's manual, it has some important things for you to know.
And if you ever break a string, make damn sure you get the ball ends out of the guitar, or they will stick to the "body" pickup elements, and cause a really bad buzz.
A few threads with some of my thoughts on pickups:
DTAR, Matrix, and the Rare Earth
Know of a good soundhole pickup for acoustic guitar?
The absolute best acoustic pickup???
But the first step, absolutely, is to find a guitar you like. Try everything you can. Try guitars which are outragously out of your budget. Try guitar any guitar you can get your hands on. Spend a month or two's worth of Saturdays in guitar shops playing guitars. Once you have had some education about what is out there, THEN you are ready to start thinking about buying one. Not until then. And once you have decided on the guitar, THEN you start thinking about pickups. Take my advice, you will be much happier with your guitar, in the long run.
Light
"Cowards can never be moral."
M.K. Gandhi